What rowing may become when ego is let loose! (5)

I believe the answer is:

wrong

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'let loose' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe there's an association between them I don't understand?

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for wrong that I've seen before include "Inappropriate" , "Erronious" , "Erroneous" , "Treat unjustly" , "bad" .)

I've seen this clue in The Telegraph.

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